Fuel Pressure input

[Beer99C5]

I was hoping to add fuel pressure as a PID, was planning on a dynotune gauge but they said it would not work (I guess its not based on a 4.8-5.0 V signal???).

Anyone successfully do this? If so what gauge was used?

Beer

[Beer99C5]

Found it at the innovate boards...

Autometer's electric full sweep fuel pressure gauge is 0-5V linear. You could probably buy just the sender from them if you don't want the gauge.

That's what I am using for fuel pressure data logging. Tap into the purple wire in the harness to get the signal. According to Autometer, the sender is calibrated to .5V at 0 psi and 4.5V at 100 psi, with a linear scale.


Here is a link to the sending unit
http://www.autometer.com/cat_accesso...il.aspx?vid=27

Now I wonder how hard it would be to make a harness for it? $100 beats the $250 for the entire gauge kit...

[Redline Motorsports]

Hey this looks cool! I am looking for a setup like this for our dyno! It also will take a 0-5 volt device!

[Beer99C5]

The Wiring harness for the Sending unit is availible directly from Autometer its $25. Here is the number to them.

That sender operates based on a 5v input, a chassis ground, and a
return signal based on pressure. 0.5v = 0 psi, and 4.5v = 100 psi. This
is a linear signal.
You may purchase a harness through our Service Department at
815-899-0801. The cost is $25.00.
Thank you.
Cory
Tech/Service

[TAQuickness]

did you get the sender direct from autometer?

[Beer99C5]

Got it from Summitracing it should be on the brown truck somewhere...
http://store.summitracing.com/partde...5&autoview=sku Sending unit only


Wow...I just called Autometer for the harness, and they are sending it for nuthing...They asked what gauge I was running and I told them my intentions (no gauge just to use for logging...) and they said they would send out the harness right away...

Pinch me! Am I dreaming?

[TAQuickness]

I wasn't so lucky. Autometer gave me this part number and it cost $35. Still beats $250 for the guage.

Thanks for posting this up Beer. Be sure to document your install and I'll help you proof it when I install mine.

[Beer99C5]

I hope the Fuel pressure thing works out as I am having ZERO luck with my LC-1 wideband...

0 volts on warmup (correct) then when warm 2 volts, then a minute later 5 volts...and a 8 code. Changed the sensor, made a heat sink, recalibrated the heater, free air recal, still no worky. Try and program the LC-1 and it won't connect to the serial port unless I use the out line to the LC-1

[Happy Jim]

Try and program the LC-1 and it won't connect to the serial port unless I use the out line to the LC-1

?? the "out" line is the one you are supposed to connect to your PC for programming, the "in" line should have a terminator plug inserted into it (unless you are running multiple LC1's).

Jim

[Beer99C5]

From the Dynotune instructions...

Please read the LC-1 controller handbook cover to cover so you understand the principles of operation.
1) Connect your laptops program cable to the “IN” connector on the
LC-1.
2) Launch the Innovate Configuration Software. A small box will pop up asking “make sure the LC-1 is connected”.
3) Now turn the key to the “on” position so the LC-1 has power. The configuration software screen will automatically pop up on the screen. You are now ready to configure the LC-1.
Set the parameters as follows:
1) Verify that the fuel setting is gasoline and set at 14.7
2) Click on the “analog output 1” tab.
3) Set analog output 1 as follows:
a. Select the “air fuel ratio” button
b. 1.000V= 10.00 a/f
c. 2.000V= 20.00 a/f
d. Select “advanced” button
e. Select the “Instant” sample rate.
f. Enter 0.00V at warm up.
g. Enter 5.00V at output error.
h. Press “OK”
i. Press the program Button. It takes one second to program, you will not get any message about programming completed but you will notice that the program button is now shaded. This confirms that you have programmed the LC-1.
j. You are done!


But hey I am willing to try anything, I am waiting on a RMA # and instructions and don't really want to cut the thing out...